Inlet-valve mechanism



Aug. r23',v 1927.

.INVENTOR ATTORNEY P HAAS INLET VALVE MECHANISM Original Filed March 1e.192s Cil . invention is fully Patentd Aug, 23 1927. v .Y

UNITED As'rfrplas' v1,639,997 PATENToFFICE.

Y 5121111.11#l HAAs, 10F DAYTON@ `oirro.

Y `1Nmaf-VALVE: ivIEcHANKI'si/r.

My invention consists in the novel features hereinafter described,reference being had to the accompanying drawing, which illustrates oneembodimentof the invention selected by me for purposes of illustration,and the said disclosed in the following description andclaims.

The object of my'invention is to provide an inlet valve for flushingtanks of extreme simplicity vand of cheap construction, which `canvbeemployed Ain connection withany ordinary flushing tank and which isso constructed and arranged that it is readily accessible, so that thevalve can be readily removed and replacedv without the expense and delayincident to the employment of skilled labor, and my invention consistsin thenovel features'of construction and Combination of -partshereinafter fully described'and particularly pointed out in the claims.

This application is a division of my formerapplication for LettersPatent of the United States filed March 16, 419,26, and

given `Serial No. 95,007. Y

Referring to the accompanying drawings,`

Fig. `1 is af'vi'ew of a flush tank, partly broken away, andfshowingmy'improved inlet valve mechanism installed therein.l`

Fig.` 2 is an enlargeddetail sectional view,

of the inlet valve anda portion ofthe float leverlfor loperating thesame, showing kthe valve in closed position.;

` Fig. 3 is a detail viewofthe several parts*v of the valve mechanism inseparated relation. Y v.

Y Fig. 4 is a top plan view of the'lower'casing member.

Fig. 5 is a similar view tovFig. 2, showing v a slight modification ofthevalve mechanism with the valve/,in open positiom In the drawings, l,representszthe tank,

provided with'the usualv cover, 2, and illus-V trating my improvedinlety k,valve mechanism installed therein. The tank is'shown tpro-fy Ysimple disc,64,iof rubberorleather, or any suitable material having itsedges clamped vided with the .usual flushingfpipe',"4,'con nected withthev usual' outlet fitting;4 held in place in the bottom of thet'ankbythe nut, '11, and washer,.12, but these 'partsy and the kflushingvalve mechanism, which maybe of f any desired construction, formano part'of my -present;invention,Y and 1 will not be'further v Y Drignalapplication led March 16, 1926, Serial No. 95,7007. :Divided andthis-application led Novem- 'A ber 23,1926. serial No; 150,267. Y

'nection, 51, in this 'instance-inthe bottom of y and Aa counter-boredand threaded aperture, Y

indicated at 55, into which the upper end of thewater-inlet tube, 50, isscrewed.' The inlet tube, 50, is surroundedby a discharge pipe, 56, oflarger diameter,-the upper end of which isserewed into-the aperture, 54,in the valve casingr member, 53, and-in the lower end of said ypipeextends nearly to the bottom of the tank, thereby'forming an an? nulardeliverypassage surrounding the inlet pipe, 50, and dividing thedischarged water which passes intothe tank, into a thin annular stream,which dischargesvery silently from the bottom ofthe discharge pipe. The

v upper partof the casing member, 53,'is pro- ,vided with an annularchamber, 57, inthe center, of which is a tubular valve seat, `58,

lcommunicatingwith'the inlet passage, and

the .annularchamber,57, communicates by a plurality of .verticalapertures, 5.9, as indicated in the top plany view, F ig.` 4, with theannular dischargepassage between the tubes,

l 50`and v56, which 'is indicated by the numeral 60.. Theupperipart-ofthe valve casing comprises the'casing-member',l G1, whichis of cy- Y lindrical form,andY is .adapted to receive 'a follower, y62,preferably providedl with ears, 63, sol-that it can'be turned by handwithout Yawr'enclnrthe said follower having interiorly `threadedportions engaging eXteriorly,threadedfportions on the valve casingmember, 5:3.r4 vThe valve itself is formed by a rigidly between the.meeting faces" of the V'casing members, 61and 53, asv clearly shown inFig.a2-,gabove the valve seat, 58, the said disc beingjada'pted to beYforced down into engagementjfwith laqseatY by a mushroomv plug, or pin,65, lravingya stem, 66, extending ,through ahole inthe upper casingmember, 6l, Ainto afjtraiisver'se recess, ,with which said member, isprovdedv: will, be noted that the .clamping of the marginal portions ofthe valve disc, 64, between the members of the casing, makes itunnecessary to provide any stuffing box tor the projecting stem, v66.The upper portion ot' the casing member, 61, is provided on oppositesides ,ot the slot, or recess, 67, with aligned apertures, 68, toreceive :the .pivot pin, 6,9., on which the Varlve actuating lever, 70,or float is Ypivoted. The pin, 69, is preferably provided with a'segmental shaped extension, iindicatedat 69a, in Fig. 3, so that aftervthis pin, 69, is lpassed through the apertures, 68, and the lever, 70,Vvit may be turned down into a horizontal position, indicated in Fig. 2,`to engage ythe cylindrical portion ot the casing member, 6.1,

so that the pin, 69, is thereby locked and cannot be accidentally7removed.

The float lever, 70, may be provided with a float', 75, of any usual ordesired character, which will raise the lever as 'the water fills thetan-lr, and close the inlet valve, 64e, as indicated in Fig. 2. It willbe seen that as the -iioat `lever rises, the portion, 70a, in rear Aofthe pivot pin, v69, will engage the stem of vthe mushroom plug, 65,andfpress the disc valve, '64, down von'th'e valve seat, 58'. It willalso 'be noted 'that 'the point of engagement,

indicated at 70", .between the portion, 70a, 'of the float lever and theend ot the pin, 66, is extremely close to the axis ot the pivot, 69,sothat 'the maximum leverage is afforded tothe ftloat in closing the valveand holding it closed. It will alsobe `noted .that this inlet valve canbe repaired with the utmost simplicity and without the useo'f any tools.By swinging the locking arm, A69, of the pivot pin vertically into theLposit-ion shown in dotted lines in F ig. 2, and removing rit, vthetlo'at lever can be instantly .removed and theiiollower, 62, can be,unsc'rewed with the fingers by means o wings, or ears, 63enabling theupper part ot the valve casing co-ii'taining the mushroom plug to -fbe.removed together with the disc valve, 64. Any householder can improvisea new disc valve out ot a piece ot lea-ther A,or -rubber, ita sparevalve is not available, and the parts can be replaced with aznew val-ve.There is nothing about the valve mechanism, eX- -cept the disc valve toAget lout Aoit order, and 'should anew mushroom plug =be 1needed for anyreason, it can be inserted-while. the upp'e'r halt of the valve casing'is removed,ian*d "a spare plug can be kept Yon yhand for Lthe purpose.

In Fi/g. '5 I have shown a 'slight modiication of theinlet valve,l inwhichthe-countery vbore, `which receives the water inletpipe, iscfarried entirely throughthe casting. In :this iigure the lpartscorresponding toV v'those 'show-'n in Fig. 2, are-giventhe samenumerals, with added. Thus, it yvvillbe noted Athat the valve seat,indicated `at 1.58, is in this instance -tormed 'on the extreme upper:the water Ainl/the tank. 'fthe valve is closing,:therewil\l,'itheretore,ibe substantially equal ,pressure inthe inlet pipe andin the v[discharge passage, .so thatV :the .valve-closes quietly withoutthe hissing noise .usually associated withV the 1operation -ot' inlletvalves under a Jhigherlavater pressure. The :eti'ectnis similar=to'.that.of:piiiching av rubber `lhose throughwhichewater underl.pressureQis fbeing conducted.l

bythe portion, 1703, ot the float lever, 170.

The construction is otherwise exactly the same as shownin YFig. 2. y

The mushroom plug, or plunger, whichY operates the inlet valve, ispreferably made -ot nickel alloy, so that there is lno'danger ot itsbecoming corroded,andesshown, it has a very small diameter and.requii'jes a very ysmal-l holein thetop ot the valve casing, leavingheavy stock portions to take the pivot `ot the float aleverl beterestated, this slender Vstem can be made to contact with ,the `lever veryyclose to the ,pivotal1 asi-is ot' vthe lever (in ,practice there .isabout fig between the vertical planes ottfhe pivot axis and point of,engagement between the lever and valve stem) thus giving greatleverage`to the float. j

`Where the inlet :pipe is' screwed through thecounterborc portion ,of.the lower valve casing member, :as indicated in Fig. 5,'and the valveseat is it'orme'd on the upper ,end ot `the inlet pipe, by sim-plyturning l:the lower part ot'fthe yvalve casing with respectto the inletpipe, the .position `of .thevalve seat can be adjusted vertically withrespect to the valve, so yas to ycause the valve to close vsooner orlater, as desired,` and thus maintaining the water level .at the desiredzheight inthe ltank without .bending the iioat lever. This .can be doneinsita, as the connection` between the upper and ilower members otk theinlet valve casing is virtually a union, permitting the rotation ot thellower .partot thecasing with respectlfto :the inlet' pip-e, by simplyloosening the follower, 162, without removing the `float lever.

It is also tobe noted that the inlet'orifice vwithin the valve .seat .is,preferably 4made substantially equal to, or slightly greater than thearea of the annular passage between the inlet pipe and outlet pipe,.sothat pressure -is maintained on the .wa-terelear. down to :thelower-:end of thedeliveryrpipe.y which discharges noiselesly under thesurface .ot It follows that when 'Vhat I claim and .desire to .secu-rebyvlaetters Patent` is 1. vThe combination with fa'ziiushing:tank,V

ot `an inlet pipe therefor"` provided withla :valve seat atitsilextremity, an inletvalve` loi) charge aperture adjacent thereto, aninlet valve consisting of a flexible disc interposed between the membersof the valve casing and extending over the valve seat on the end ot theinlet pipe, the other member ofV the valve casing being provided withmeans for depressing the valve upon said seat, means for connecting thesaid casing members permitting a relative rotation of one of saidmembers with respect tothe other, and a float actuated lever operativelyconnected with the valve casing, and adapted to engage the valveactuating device therein, whereby, by rotating said lirst mentionedvalvek casing member with respect to the inlet pipe, the location ot thevalve seat with respect to the valve may be adjusted.

2. The combination with a flushing tank,

of a vertically disposed inlet pipe within the same, an inlet valvecasing comprising upper' and lower members, the lower member beingprovided, with a central, threaded aperture iitting the upper end of theinlet pipe, vertical apertures arranged laterally of the said centralaperture, and a threaded aperture of greater diameter than saidcentrallylocated aperture at the lower end of said lower member and incommunication with Vthe said laterally arranged vertical apertures, adischarge pipe fitting said aperture ot greater diameter, andsurrounding ,the inlet pipe and extending to a point near the bottom olfthe tank and forming a free annular discharge passage between saidpipes` a flexible disc valve for closing communication between the inletand discharge pipes within the casing clamped ,between the upper andlower members, a mushroom plug in said upper member-t0 engage saiddiscvalve having a projecting stem, and a float lever pivoted to saidupper member and engaging saidstem, the annular passage formed betweenthe parallel surfaces of the concentric inletand discharge pipes beingot less cross sectional 4'area than that of th'efinlet pipe, whereby thepressure of water .in the vinlet pipe will be continued to the lower endof the discharge pipe, and will permit the valve to close noiselessly.

3. An inlet valve mechanism Jfor flush tanks comprising a valve casingformed of upper and lower members, the lower casing member provided witha central bore, internally threaded to receive an inlet pipe, said valvemechanism beingV provided' with a centrally located valve seatcommunicating with'the inlet pipe, said casing member beingprovidedadjacent to its lower end with a bore of larger diameter than saidcentral rvbOle, and meansforV attaching it to a dis-v charge pipecommunicating with said larger bore, and adapted to surround the inletpipe and form a discharge passage between said pipes, said casingmembery being also provided'with vertical discharge passages eX- teriorto the valve seat, communicating with said larger bore and adapted tocommunicater with said discharge passage between said pipes, said uppercasing member provided with a transverse, vertical slot anda verticalaperture communicating therewith and coaxial with the valve seat, theslotted portion of said upper casing member" being' provided withregistering horizontal apertures to receive a pivot pin for pivoting aiioat lever therein, said casing members having meeting annular clampingmembers, and one ot' said ,members being provided with exterior threadedportions, a flexible disc valve extending over said valve seatv andhaving its marginal portions between said. clamping portions ofrsaidcasing members, a mushroom plug having a head engaging said valve in aAdirection to force it upon said seat, and a stemV extending throughsaid vertical aperture in the upper casing memberinto 'said transverserecess, in position to engage said float lever, anda follower havingyinteriorlj7 threaded portions for. engaging said exteriorly threadedcasing member, `for clamping said casing members together upon'themarginal portions ot the disc valve. f

Y In testimony whereof. Ifatlix my signature,

PHILIP HAAS.

CTI

